Clipper

1. An integrated circuit which
implements the SkipJackalgorithm. The Clipper is
manufactured by the US government to encrypt telephone data.
It has the added feature that it can be decrypted by the US
government, which has tried to make the chip compulsory in the
United States. Phil Zimmerman (inventor of PGP) remarked,
"This doesn't even pass the sniff test" (i.e. it stinks).